Floyd Mayweather just came off the most hyped fight of the decade with Manny Pacquiao. Granted, the title he won from Pacquiao became null-and-void because fighters can't have titles in more than one weight class, but he still beat the pac-man nonetheless. Many wondered whether there would be a rematch between the two and it looks like that rumor has been put to rest. It'll never happen again. The reason for this is because the final fight for Mayweather will take place this September against...